The Russian army started the war in Ukraine with 3,300 tanks. Oryx counts absolutely certain losses and comes up with about 1,500 losses, 1,000 destroyed and 500 captured and put back into service by Ukraine. The Ukrainian General Staff comes up with 3,458 because their standard is “pretty sure.” There's no indication that Russia has a large number of new models rolling off the assembly lines, so how are there any tanks left on the Russian side?
Popular Mechanics says that Russia has a thriving tank industry that refurbishes old tanks. The T-62, the model was developed in 1961, is getting rebuilt and sent to the battlefield. The British Ministry of Defense estimates 800 T-62s have been refurbished and sent to Ukraine. .